chroma

Store and query vector embeddings with metadata filtering for RAG applications.

1|Updated Jun 25, 2026
One-click install
npx skills add https://github.com/Signmanal/VIGIL --skill chroma-signmanal
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: chroma
Source: https://github.com/Signmanal/VIGIL/tree/main/optional-skills/mlops/chroma
Command: npx skills add https://github.com/Signmanal/VIGIL --skill chroma-signmanal

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Building AI applications like retrieval-augmented generation (RAG) tools or semantic search systems often requires a vector database that is easy to deploy, doesn't lock you into costly managed cloud services, and supports storing embeddings with associated metadata for filtered search. Chroma eliminates this friction for local development and open-source projects.

Core Features & Use Cases

  • Local & Self-Hosted: Run entirely on your own infrastructure with no cloud dependencies, ideal for sensitive data and open-source projects.
  • Metadata-Aware Search: Combine vector similarity search with exact and range metadata filters to narrow results to only the most relevant documents.
  • Framework Integration: Works natively with popular LLM frameworks like LangChain and LlamaIndex, and supports custom embedding functions for specialized use cases.
  • Use Case: If you are building an internal knowledge base chatbot for your team, use Chroma to store your company's documentation as embeddings and retrieve the most relevant answers to employee questions.

Quick Start

Use the chroma skill to index your team's internal documentation and retrieve the most relevant sections for a given user question.

Frequently Asked Questions about chroma

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I store embeddings for semantic search in a local vector database?

To store embeddings for semantic search locally, you need a self-hosted vector database like Chroma to index text and document vector representations. It runs entirely on your own infrastructure without cloud dependencies, enabling filtered retrieval.

How do I build a RAG application without relying on managed cloud services?

Build a RAG application without managed cloud services using a self-hosted vector database like Chroma. It stores local embeddings and integrates natively with frameworks like LangChain and LlamaIndex for retrieval-augmented generation.

Can I filter vector similarity search results using document metadata?

You can filter vector similarity search results using document metadata. Chroma supports metadata-aware search, allowing you to apply exact and range metadata filters with logical and comparison operators to narrow down retrieved documents.

Does Chroma work with LangChain and custom embedding functions?

Chroma works natively with LangChain and LlamaIndex frameworks. It supports custom embedding functions for specialized use cases, allowing you to integrate existing LLM workflows while storing and querying vector representations locally.

What is the best way to index internal documentation for a knowledge base chatbot?

The best way to index internal documentation for a knowledge base chatbot is using an open-source embedding database like Chroma. It stores your company's documentation as embeddings and retrieves the most relevant sections to answer employee questions.

What are the limitations of self-hosted vector databases for RAG?

Limitations of self-hosted vector databases for RAG include managing your own infrastructure and scaling. Chroma is ideal for local development and sensitive data, but requires self-hosting without the automatic scaling of managed cloud services.